Page 4 - Neurological examination of children
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Motor function                                                                      Cranial nerves I-XII




        Observe: Normal or abnormal movements. Range of movements. Muscle tone, bulk, and   1.    Can be examined using a hidden mint sweet
        power. Deep tendon reflexes: Let the child touch the hammer— or demonstrate its use on
        parent  first. Plantar response, cerebellar function, rapid alternating movements.   2.    Visual acuity develops with age: Infants should be able to see and follow
                                                                                                 a moving face. Toddlers may see, note and follow a small object like a
                                                                                                 paper clip. Children from 2 years and up may be tested with Kay charts
                                                                                                 https://www.kaypictures.co.uk/, the Tumbling E-chart or the Osterberg
         Power can be graded 0-5              Deep tendon reflexes can be graded 0-4              visual acuity picture (Figure 3). Testing at 3 or 6 meters is preferable.
           0: No contraction                    0: No reflexes                                    Figure 3 is for practice at approximately one meter.
           1: Palpable or visual contraction    1: Weak reflexes
           2: Movement with gravity eliminated      2: Normal reflexes                       3.    Total oculomotor palsy: Dilated pupil, ptosis of upper lid, paralysis of
           3: Movement against gravity          3: Slightly hyperreflexic                         medial, inferior and superior rectus muscles. Differential: Horner
           4: Movement against resistance       4: Severely hyperreflexic. Increased              syndrome is a disruption of sympathetic fibres to the eye causing: miosis,
           5: Normal power                        zone. Sustained clonus may be                  mild ptosis and enophthalmus.
         (Medical Research Council 1976. Aids to the       elicited.
         examination of the peripheral nervous (..)                                         4.    Trochlear palsy: Affected eye is rotated upwards with compensatory
         system HMSO, London)                                                                    inclination of the head to the normal side.

                                                                                            5.    Ask the patient to clench teeth and waggle jaw from side to side.
        Fine motor function: Observe drawing skills. Use of right/left hand. Age appropriate?       Sensation.
        Finger opposition.
                                                                                            6.    Abducent palsy: Affected eye is deviated medially, with a compensatory
        Gross motor function: Observe how the child gets from supine to the standing position.      head turn of the head to the paralyzed side
        Children up to 3 years will turn prone to get up; beyond this age weakness or low muscle
        tone must be suspected.                                                             7.    Power: Smile. Show teeth. Eye closure.

        Instruct the child and demonstrate: Stand with eyes closed. Stretched arms test. Walk 10   8.    Hearing: Whispering voice, weak
        meters and include a half turn. Hop on one leg. Stand on one leg. Walk on heels and toes.      rattling.
        Walk on outer borders of the feet (Fog’s test). Run.
                                                                                            9+10  Listen for hoarseness or stridor.
                                                                                                 Observe the soft palate, the gag
        About this folder                                                                        reflex and swallowing.


        This folders mission is to support clinicians doing clinical tests in children with neurologi-
        cal symptoms. The 1. version in Danish was published in 2002. The 1. international version
        was published in 2017. Thomas Balslev, MHPE, PhD, edited the folder. Thomas Balslev is a
        consultant at the dep. of Paediatrics, Viborg, and an associate professor at the Centre for
        Educational Health Sciences, CESU, Aarhus University, Denmark http://cesu.au.dk/en/. The
        folder is sponsored by the Danish Neuropaediatric Society. An unrestricted online access
        policy is applied. http://dnps.dk/uddannelse/neurofolder/

        Acknowlegements: Dr Robert Smith, MBBS, DRCOG, FRACP, Child Neurologist, John Hunter
        Children’s Hospital, NSW, Australia is thanked for valuable comments.
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